Portable lighting fixture



Dec. 27, 1949 H. D. FINE 2,492,852

PORTABLE LIGHTING FIXTURE Filed Aug. 6, 1946 .'i INVENTOR.

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A TTORNE Y Patented Dec. 27, 1949 PORTABLE LIGHTING FIXTURE Harold D.Fine, Beverly, Mass., assignor to Sylvania Electric Products Inc.,Salem, Mass., a corporation of Massachusetts Application August 6, 1946,Serial No. 688,791

1 Claim.

This invention relates to electric lighting devices and particularly toportable type lighting fixtures.

It is an object of the invention to provide a portable lamp adapted touse fluorescent illumination. I

A further object of the invention is to provide a portable type of lampwhich is of small size adapted to reach inaccessible places but ofsufficiently high light output to provide eflicient working conditions.

A further object of the invention is to provide a portable lightingdevice having a maximum degree of protection against mechanical damageand having a minimum weight.

A further object of the invention is to provide a portable lightingfixture having means whereby it may be temporarily used as an installedfixture.

To provide a better understanding of the invention a particularembodiment thereof will be described and illustrated in the drawings inwhich:

Figure 1 is a perspective view of a fixture embodyin the invention;

Figure 2 is a longitudinal sectional view of the fixture;

Figure 3 is cross section on line 33 Figure 2;

Figure 4 is an end view of the fixture showing the manner in which itmay be temporarily installed upon a wall; and

Figure 5 is a perspective view of the holding device for installing thefixture as shown in Figure 4.

The fixture utilizes a fluorescent lamp i as its source of illumination.The lamp is supported in lamp holders 2 secured to a chassis 3. Thechassis 3 is of rigid construction and is composed of upper and lowerelongated relatively narrow members 4 and 5 which are channel shaped incross section. The upper section 4 presents a top reflector surface 6.The lower section 5 is received within the sides of the channel 4 andpresents a bottom wall 1 for the chassis. The portions 4 and 5 fittightly together and may be further secured in any desired manner.Screws 8 are provided to secure control switches 9 to the inner face ofone wall of the reflector. The switches 9 have their control membersprojecting outward and function in the conventional manner in connectionwith suitable wiring, not shown, to start and stop the operation of thelamp.

The member 5 is provided with laterally pro- 2 jecting bead portions I0desirably but not necessarily situated in the plane of the bottom 1 andmay extend for the full length of the chassis or for a portion of thelength thereof.

A combined cover and protector member II is drawn from sheet metal andis provided with integral side and end portions embracing andsubstantially covering the chassis, the bottom edge of its side portionsl2 desirably bearing against the beads Ill. The member II is drawn fromone piece of sheet metal and desirably presents a rigid and streamlinedform shown in F18- ure 1. The upper partion of the member II is providedwith light openings l2 arranged to present protective grill bars l3.

The cover member I I may be secured to the chassis in any desiredmanner. As shown herein one end wall thereof is provided with a lockinglip I4 which is projected into a slot IS in the end wall of the chassisthus securing one end of the member II to one end of the chassis. Theother end of the member II is secured to the chassis by means of a screwl6 having threaded en agement with the chassis end wall. A suitable hookI! is provided by means of which the device may be hung up during usethereof or when not in use.

A feature of the invention is the provision of means for temporarilyinstalling the fixture in a preselected location as upon the wall l8shown in Figure 4. To detachably secure the lamp a spring clip I9 isprovided which embraces the bottom of the lamp and has clip portions 20at its ends which interlock with the beads I 0 on the fixture chassis.The clip is held on the wall by a screw 2| or in any suitable manner.The clip may be positioned to hold the fixture horizontally orvertically.

In the drawing the fixture is shown in a horizontal position and ifdesired a shade 22 may be provided which cuts off light from a portionof the lamp and permits light to shine downward. The shade 22 also actsas a reflector to project the light in a given direction as well asshading it from the eyes which may be desirable for certain kinds ofwork. The shade is provided with lips 23 one of which slips over thebottom edge of the chassis and the other clips upon the longitudinalgrill bar 24.

If it is desired to use the fixture as a portable lamp it may readily bedisconnected from the clip and is immediately available for use inlighting diiiicult locations as when working in and about an automobileor aeroplane.

If desired the member ll may be constructed with its lower side portionspartially cut away at the area within the dotted lines indicated at 25in Figure 1 thus to improve its economy of production.

What I claim is:

An armored type portable fluorescent lighting fixture comprising ahollow elongated chassis having a channel shaped upper portionpresenting a reflector surface and a channel shaped lower portionfitting within the upper portion and having laterally projecting beadsalon its sides, said chassis having a slot in one end wall thereof and athreaded aperture in the other end wall thereof, lampholders secured tothe chassis, a unitary cover member of sheet metal having light openingstherein arranged to present protective grill bars, said cover havingunperforated integral side and end portions extending down to envelopsaid chassis and engage chassis.

HAROLD D. FINE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,3153% Heinrich Sept. 9, 19191,484,211 Erikson Feb. 19, 1924 2,291,491 Naysmith July 28, 19422,315,884 Vendope Apr. 6, 1943 2,391,825 Maurette Dec. 18, 1945

